H - Electricity – 01 – F
Patent
H - Electricity
01
F
313/35.319
H01F 7/00 (2006.01) H01J 29/76 (2006.01)
Patent
CA 1223627
Abstract of the Disclosure An electron beam deflection yoke for use in a cathode ray tube (CRT) includes a plastic housing within which are symmetrically positioned a pair of horizontal coils and on the outside of which are symmetrically mounted a pair of vertical coils wound on respective halves of a cracked ferrite core. Integral with and on the outside of the housing, or yoke liner, are two pairs of flexible members, or ribs, aligned with the longitudinal axis of the housing, positioned 180° from each other around the circular circumference of the housing, and adapted to engage an inner surface of a respective one-half ferrite core between the coil windings thereon. The flexible ribs are adapted to receive core elements having a wide range of thicknesses and inner dimensions and to maintain the one-half ferrite cores, which are coupled together and held in position by resilient clips, concentric relative to the longitudinal axis of the housing. In addition to ensuring the concentric positioning of the horizontal and vertical coils, the flexible positioning ribs permit the outer vertical coils to be rotated about the longitudinal axis of the housing so as to align the vertical magnetic field 90° relative to the horizontal magnetic field.
487068
Macrae & Co.
Zenith Electronics Corporation
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